After completing the Rubicon and seeing first hand how the small pattern knuckles on the FJ40 are vulnerable to breakage, I was wondering if anyone had a lead on where to purchase either FJ60 or Mini Truck steering knuckles. Is there a difference between the two with one being better than another? Thanks for the help.

Sorry for the confusion. I am replacing the early FJ40 knuckles with mini truck knuckles and upgrading the steering arms, tie rod, drag link etc. from 4x4 Labs.

ok, that makes more sense. you won't be able to reuse your 4x4 labs stuff on the mini/60 knuckles since the bolt pattern is wider on the new knuckles, but you should be able to sell them for a little cash to help fund new ones. you can order the new ones to fit your existing tre's.

If you're staying stock, with the large pattern steering knuckles, will the mini-truck arms work with the LC tie rod ends?

I have the 4x4 Labs steering set up like you have, upgraded tre, drag link and tie rod. I was going to swap out my small pattern 4x4 Labs steering arms with the large pattern (6) stud set. There is an additional piece that will need to be welded onto the new mini truck knuckle to accept the (2) extra studs. After talking with Brian at 4x4 Labs, I think everything should work.